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1a7fe2ebe5
There is just one file-based implementation, so this dispatch mechanism is unnecessary. Instead of the vtable pointer __libc_utmp_jump_table, use a non-negative file_fd as the indicator that the backend is initialized.
64 lines
2.0 KiB
C
64 lines
2.0 KiB
C
/* Copyright (C) 1996-2019 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@cygnus.com>
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and Paul Janzen <pcj@primenet.com>, 1996.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <libc-lock.h>
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#include <errno.h>
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#include <stdlib.h>
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#include <utmp.h>
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#include "utmp-private.h"
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/* We have to use the lock in getutent_r.c. */
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__libc_lock_define (extern, __libc_utmp_lock attribute_hidden)
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int
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__getutid_r (const struct utmp *id, struct utmp *buffer, struct utmp **result)
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{
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#if (_HAVE_UT_ID - 0) && (_HAVE_UT_TYPE - 0)
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int retval;
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/* Test whether ID has any of the legal types. */
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if (id->ut_type != RUN_LVL && id->ut_type != BOOT_TIME
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&& id->ut_type != OLD_TIME && id->ut_type != NEW_TIME
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&& id->ut_type != INIT_PROCESS && id->ut_type != LOGIN_PROCESS
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&& id->ut_type != USER_PROCESS && id->ut_type != DEAD_PROCESS)
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/* No, using '<' and '>' for the test is not possible. */
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{
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__set_errno (EINVAL);
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*result = NULL;
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return -1;
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}
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__libc_lock_lock (__libc_utmp_lock);
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retval = __libc_getutid_r (id, buffer, result);
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__libc_lock_unlock (__libc_utmp_lock);
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return retval;
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#else /* !_HAVE_UT_ID && !_HAVE_UT_TYPE */
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__set_errno (ENOSYS);
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return -1;
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#endif
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}
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libc_hidden_def (__getutid_r)
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weak_alias (__getutid_r, getutid_r)
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